A85/100
MARIONVILLE — Water Quality Report 2026
Serving 2,092 people · Missouri
Water Source
Groundwater
County
—
System ID
MO5010499
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2007.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About MARIONVILLE
Is MARIONVILLE water safe to drink?
MARIONVILLE water receives a grade of A (85/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MARIONVILLE detected?
1 contaminants were tested in MARIONVILLE's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MARIONVILLE have any EPA violations?
Yes, MARIONVILLE has 4 EPA violation(s) on record, with the most recent in 2007. Violation types include MR, MCL. 2 are health-based violations.
How many people does MARIONVILLE serve?
MARIONVILLE serves approximately 2,092 people, Missouri. The system provides water to 1 community: Marionville.
What type of water does MARIONVILLE provide?
MARIONVILLE sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MO5010499.
How does MARIONVILLE compare to other utilities in Missouri?
MARIONVILLE scores 85/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Missouri state page for a full comparison of water systems.